MONGODB M102 HOMEWORK 3

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Connect to the mongos with a mongo shell. You have just been hired at a new company with an existing MongoDB deployment. First, a server is brought down for maintenance once a month. How many documents do you have? Posted by SiteAdmin at MongoDB preserves the order of writes in a collection in its consistency model.

Most MongoDB queries involve javascript execution on the database server s. It’s maybe a bit of a trick question as the important thing is to relate the requirements to the particular set of options they offer in the answers. Once you have it right and are ready to move on, ctrl-c terminate the shell that is still running the homework. They are running a single replica set with two members. First, a server is brought down for maintenance once a month.

We have worked with many organizations of all the sizes.

You are concerned about two things, however. Thanks to share this useful informative blog about MongoDB Training. Once done with that, run homework.

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One way to assure people vote at most once per posting is to use this form of update: None of the above. Mongobd you have it right and are ready to move on, ctrl-c terminate the shell that is still running the homework.

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Which of these statements is true? My first introduction to MongoDB was to sign up to university.

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Really nice blog post. Therefore, we need to add at least one data-bearing member to our current deployment to satisfy that requirement.

First, a server is brought down for maintenance once a month. So we know we need to add a member to our deployment.

When you ask why, they explain that this ensures that the data will be durable in the face of the failure of either server.

That is, have a voice field present in the limits subdocument. To allow writes to be replicated, there needs to be a data-bearing primary with a data-bearing secondary to replicate to.

Once you have eliminated the slow operation, run on your second tab: None of the above. It was nice to read this Blog.

mongodb m102 homework 3

Second, you also want to ensure that all writes can be replicated during server maintenance. That is, have a voice field present in the limits subdocument. Once you have two secondary servers, both of which have sync’d with the primary and are caught up, run on your primary: The questions were all quite straightforward and covered in the online monfodb material.

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Therefore, we need to add at least one data-bearing member to our current deployment to satisfy that requirement. When this is done, the replica set primary steps down, and the set cannot accept writes. Which arrangement s mongpdb servers will allow you to be stay up as in, still able homewor elect a primary in the event of a failure of either data center but not both at once?

mongodb m102 homework 3

Add another data bearing node. First, a server is brought down for maintenance once a month.

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Not that it matters, but Option 3 doesn’t satisfy the first requirement either. Really nice blog post.

mongodb m102 homework 3

Check all that apply:. When done, run homework. You would like to ensure availability of writes during server maintenance. Thanks for sharing such great hoework.

Which arrangement s of servers will allow you to be stay up as in, still able to elect a primary in the event of a failure of either data center but not both at once?